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Finding the Fourth Proportional to 3,482.31, 5,223.47 and 885.18

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Solution

The fourth proportional to 3,482.31, 5,223.47 and 885.18 is: 1,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.31 : 5,223.47 = 885.18 : x
  2. Step 2: Convert to fraction form
    3,482.31/5,223.47 = 885.18/x
  3. Step 3: Cross multiply
    3,482.31x = 5,223.47 × 885.18
  4. Step 4: Simplify right side
    3,482.31x = 4,623,706.75
  5. Step 5: Solve for x
    x = 4,623,706.75/3,482.31
  6. Step 6: Final answer
    x = 1,327.77

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.